Search:

I also once accidentally rotated my text in the XZ or YZ plane, so the cam program actually made the text get deeper left to right. I had to start the design again to get rid of the rotation.

...

I would try something like
1. Engrave a line at z=1
2. Cycle z axis up and down 50 or so times.
3. Engrave a line at z=1, right next to the other line.
As the bit hasn't been cutting, you should...

I've previously had issues with the following.
* slip on the coupling between the motor and ballscrews.
* the cutting bit being pulled out of the collet (up cut bits)
* the spindle moving in its...

I made a router with 700mm across the gantry (Y), and a single ballscrew underneath. I had 2 issues.
The cutting forces cause the gantry to skew, lots at Y=0 and Y=700, and none at Y=350,
A slight...

Zenji,

The power bill for my whole shed that houses the router is less than $250/qtr. Router runs 1-3hours most days.
Just think of it as part of the cost of the hobby.
The biggest part of my...

Lets me just clarify that I have no experience with this, but if Mach3 is throwing a reset, then there must be an input to Mach3 that is triggering it (if it is a parallel cable connection between...

Nick,

I'm running a 2400x1200mm machine that has aluminium t-slot base.
Using slots and grids you can only hold the sheet on the edges. I found that it wants to lift in the centre (upcut bits),...

Nick,
For the spoilboard, I use chipboard or pine 90x40 sticks screwed down.
I found that MDF rises at every screw entry, so if you screw your material direct to the spoilboard, the MDF ends up...

The critical speed for ballscrews shows a 1/(length squared) relationship, so double the length will make it resonate at a quarter the speed.

for example - if I my ballscrew is resonating at...

I would check 2 things:
1: Look for whip in the ballscrew. 2.4m is a long ballscrew, and i would hazard a guess the whip resonant frequency is at pretty rotational low speed. On mine (1400mm...

6 wire motors have different torque characteristics depending on whether they are wired star or delta.
In star connection, the voltage across each winding is lower, the current draw is lower, and...

Chris,

I'll go back to the Samsung CSDJ 400W drive as an example.
They can be bought used/surplus from ebay.
Note that not all servo drives accept step/dir signals, and I have no idea how to...

Chris,

My information is based on using Samsung 400W drives (second hand, ex ebay from Korea - Fa-Parts).

1. AC or DC
Not sure that there is much difference in the motor. I think that the AC...

Chris,

The servo motors generally have a fixed torque amount from 0rpm up to their rated rpm.
The torque amount is pretty much related to the wattage of the servo motor (via the applied current ,...

Bean,
The switches you have are unable to be connected in parallel to both trigger the same input with OR logic. Because they both pull the switch wire to ground, they can't be wired in series. You...

NPN sensors have the load between the positive and the switch wire, meaning that the sensor is switching the negative part of the load circuit to ground.

Not sure how you have it wired in your CNC...

Chris,
A 12 tooth T5 pulley will travel 60mm in one revolution (5mm per tooth on the belt, 12x5=60)
Assuming that it is directly mounted to the motor shaft you will have 200pulses per 60mm of...

I have a completely different BOB but it is switchable between 0-10 for the spindle speed and 0-5V.
Have you had a look to see if there might be something similar on this one.

Cheers
Bushwakka.

Theres a guy eugnret that makes table top routers. I'm pretty sure his website is xyz-cnc.com.

There's also squarefootcnc that does plans (did try and do router kits, but didn't end up with...

I broke mine off, and just drilled and tapped it out to 1/8" BSP which I could get push fit nylon hose fittings for. To do this, I removed the end cap, but if you were careful enough, you wouldn't...

Powermax45 handheld plasma cutter | Hypertherm
The datasheet here says that you need 8kw of electrical generator. Now to get 8kw you would need a 10kVA generator.
The link you listed is only a...

I do this by creating a polyline that doubles back on itself.

eg point collection for the line is
x,y
80,100
80,120
80,100

Then I to an 'engrave' mop on it with the depth set to whatever I...

I break 1/4" bits in aluminium for the following reasons
* cutting too slow, and the heat welds the aluminium to the flutes
* the chips from a previous pass getting in the way
* chips not clearing...

I've never cut UHMW plastic, only MDF and pine.
I run a 2.2kW water cooled spindle. It normally spins a 1/8" single flute bit single pass in 3/4" mdf at 2.5m/min. It will easily spin a 1/4"bit at...

I would go for the spindle. I killed 4 makita laminate trimmers (around 50hours life cutting 1/4" bit in 3/4" mdf single pass), before moving to a spindle 18months ago. The same spindle is still...

I use a 5gal oil drum, as it has a threaded port for a hose barb at the bottom. The pump is a little camping diaphragm pump with pressure switch (40psi), which feeds a 10L pressure tank (because I...

cncbaltar,
If the motor runs forward when backwards, and backwards when forwards, then you need to swap 2 output phases from the vsd to the motor.
You can make a 3 phase motor change direction by...

Keith,

I use the following fonts
Ravie
Cooper Black
Androgyne
Lobster 2
Honey Script
Shardee
Ballpark

Copy that..
Just giving some suggestions that may be able to be applied to other situations.
I don't know how leadscrews bearings are mounted, as I used ballscrews.
However, I did make the...

If you are using a BK/BF style bearing block to hold your leadscrew, then one way around this is to oversize the holes in the mounting frame (not the bearing block), and then use washers (if...